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Subtracts retrace periods from output scale.

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This commit is contained in:
Thomas Harte 2018-11-12 20:20:09 -05:00
parent 3045e85004
commit 2adf3d353e
2 changed files with 4 additions and 4 deletions
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2
OSBindings/Mac/Clock Signal.xcodeproj/xcshareddata/xcschemes/Clock Signal.xcscheme
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@ -68,7 +68,7 @@
</AdditionalOptions>
</TestAction>
<LaunchAction
buildConfiguration = "Release"
buildConfiguration = "Debug"
selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
enableASanStackUseAfterReturn = "YES"

6
Outputs/CRT/CRT.cpp
View File

@ -54,12 +54,12 @@ void CRT::set_new_timing(int cycles_per_line, int height_of_display, Outputs::Di
vertical_flywheel_.reset(new Flywheel(multiplied_cycles_per_line * height_of_display, scanlinesVerticalRetraceTime * multiplied_cycles_per_line, (multiplied_cycles_per_line * height_of_display) >> 3));
// Figure out the divisor necessary to get the horizontal flywheel into a 16-bit range.
const int real_clock_scan_period = multiplied_cycles_per_line * height_of_display;
const int real_clock_scan_period = vertical_flywheel_->get_scan_period();
vertical_flywheel_output_divider_ = (real_clock_scan_period + 65534) / 65535;
// Communicate relevant fields to the scan target.
scan_target_modals_.output_scale.x = uint16_t(time_multiplier_ * cycles_per_line);
scan_target_modals_.output_scale.y = uint16_t((multiplied_cycles_per_line * height_of_display) / vertical_flywheel_output_divider_);
scan_target_modals_.output_scale.x = uint16_t(horizontal_flywheel_->get_scan_period());
scan_target_modals_.output_scale.y = uint16_t(real_clock_scan_period / vertical_flywheel_output_divider_);
scan_target_modals_.expected_vertical_lines = height_of_display;
scan_target_modals_.composite_colour_space = colour_space;
scan_target_->set_modals(scan_target_modals_);